To further elucidate the angiogenic role of IL-1, the study measured concentrations of VEGF, macrophage-inflammatory protein-2 (MIP-2, the mouse homolog to human IL-8), and hepatocyte growth factor (HGF) proteins secreted by IL-1β-transduced Lewis lung carcinoma cells in vitro. This evidence concerns the gene IL1B and Carcinoma, Lewis Lung.